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, should be used, yextending' from the said clevis up tol theV cross-bar K, attached to thel longitudinal bars F, as

JOHN L. Kansen, or Laconia', New HAMPSHIRE.

Letters .Patent No. 75,925, elated March 24, 1868 iiiiiraovniiinur In erneertouens.

@in Stimuli ritirati tu im tina titttts jttcut mit mating @mit nftlge stm;

TAO ALL WHOM IT MAY GONGERN.:

Be it known that I, JOHN L. KEASOR, of Laconia, in the county of Belknap, and State of New Hampshire, have invented a new and useful Improvement in Gang-Ploughs; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the-art to make and use the same, referencebeing had tothe accompanying drawings, forming part of this specification.

Figure 1 is a top or plan'view of my improved machine.

Figure 2 is a detail perspective view of one of the ploughs.

Figure 3 is a detail sectional view of the machine, taken through the' line :e x, fig. 1.

Similar letters of reference indicate corresponding parts.

My invention has for its object to furnishan improved gang-plough, simple in construction, easy of adjustment, and which at the same time will be held securely and loosely when at work; and it consists in the construction, combination, and arrangement of the various parts, as hereinafter more fully described.

A are the rear wheels; B is the rear axle; C are the forward wheels; D is the forward axle, which is connectcd and p'ivotedto the forward bolster, E, by a king-bolt in the ordinary manner. F are longitudinal bars, the rear ends of which rest upon and are secured to the rear axleB, or to a bolster secured to said axle The forward ends of the bars F rest upon and are secured to the forward bolster E. I prefer to use a number of bars greater by one than the number of ploughs in the` gang. `The ploughs used may be ordinary ploughs, G, with the upper parts of their handles cut olf, or they may be ploughs, H,rwooded expressly for the machine.

`. I is a' chain, the forward end of which isv attached lto the rear sid'e of the bolster E, directly in front o'f the plough--beam. The rear end of the chain I is attached to an ordinary clevis, placed upon the forward ends of the plough-beams in the ordinary manner, as shown in the plough-beams L. In this case another chain, J,

shown, in connection with the beams L of the ploughs H; or the chain I- may pass through a clevis or stirrup, L, pivoted to the forward part of the ploughbeam, and be attached t6 the said beam in the rear ofthe clevis or loop L, as shown upon the beam g of the plough G. M is a vertical standard, secured to the roar part of the plough-beams, `and extending down upon'the inner side-of the'land-sicles of the ploughs, as shown in the drawings. N is va vertical rod or'har, which extends down through eye-bolts or keepers n', attached tothe standards M, so as to allow the plough to move up and down freely upon it. To the upper end ofthe vertical rod or bar N is attached, or upon it is formed, a horizontal bar orrod, O. The connection between the rods or bars N and 0 is strengthened, and the said rods'held in their proper relative positions by the inclined brace P,-as shown in g. 2. The land-side part of each of the horizontal rods or bars O passes through long keepers, R, attached to one of the longitudinal bars F, and the mould-board part of said'bars passes through an eye-bolt or short keeper, S, attached to another of said bars F. This construction allows the ploughs to play looselynpon theirsupports, and at the sanie time they are supported and held securely in position when at workl T are chains, `the lower ends of 'which are connected to the rear parts of the plough-beams, so as to be over or nearly over the centre of gravity of the ploughs, by means of a clcvis, or in any other convenient manner. The chains T pass up between the longitudinal bars F, over grooved camsor eccentrics, V, attached to or formed upon the shaft U, and their upper ends are securely attachedto the said shaft, so that by turningV the said shaft U, the cams V mayvrase the ploughs fromthe ground and hold them suspended beneath the said longitudinal bars. The shaft U works in `hearings attached to the longitudinal bars F, and it is operated to raise and lower the ploughs by means of a lever, W, connected to said shaft, and extending forward into such a position that it may be easily reached and Operated by the driver from his seat. v l I claim as new, and desire to secure by Letters Patentv l. The combination of the vertical standards M, cyebolts or keepers n', vertical bars N, horizontal bars O, and keepers R S with each other, with the ploughs G or H, and with the longitudinal bars F, substantially as herein shown and described, and for the purpose set forth.

2. In combination with the shaft U, arranged as shown and described, I claim the cams V, chains Il, and horizontal bars F, all constructed and operating as described, whereby thc ploughs G H are raised and lowered.

3. The construction, combination, and arrangement of the :Ldjustahle lever W with the shaft; for the purpose of operating said shaft, substantially as hereinshown and described. v I 4. The oombination'of Ehe draught-chains I with the bolster E and forward ends of the plough-beams g or L, substantially as herein shwn and described.

5. The combination of thechains Jwith the forward ends of the plough-beams g or 7L', and with the longitudinal bars E, substantially as herein shown and described.`

JOHN L. KEASOR. Witnesses:

CHARLES LANE, GEORGE B. LANE. 

